UDP traffic
Datagrams matching country:HK sent to HoneyLabs sensors over UDP in the last 7 days. DNS questions and QUIC client fingerprints are decoded on the sensor. Other datagrams are kept as their first bytes and labelled by protocol where it can be recognised.
A UDP source address can be forged, so each address listed here either sent the traffic or was impersonated by whoever did. UDP traffic is kept out of verdicts, feeds, watchlists and alerts.
1.3K
Datagrams
32
Source addresses
7
Networks
1
Countries
146
Destination ports
Traffic by type
Service queries
14 datagrams from 5 sourcesRequests a service answers without a handshake. Scanners send them to find open DNS, NTP, SNMP or SSDP servers, which are also the servers reflection attacks abuse.
Latest DNS datagram, to 53/udp
Payload bytes withheld: they contain the sensor's address.
Other services
1,141 datagrams from 16 sourcesFirst packets of sessions with VPN, voice, tunnelling, database and management services.
Latest SIP datagram, to 65060/udp
Payload bytes withheld: they contain the sensor's address.
Unrecognised
118 datagrams from 15 sourcesDatagrams no decoder recognised. Their first bytes are kept.
Latest Unrecognised datagram, to 65082/udp
payload bytes
00000000 7f 00 01 2b 99 86 28 01 00 00 06 00 00 00 00 ff |...+..(.........|
Peer-to-peer
1 datagrams from 1 sourceFile-sharing clients trying to reach a peer that used one of these addresses before. This is not scanning, so it is left out of every other figure on this page.
Amplification checks
Probes for services that answer a small request with a much larger reply, the property reflection attacks rely on.
| Service | Port | Datagrams | Sources | Factor |
|---|---|---|---|---|
| DNS | 53/udp | 6 | 2 | 28 to 54 |
| NTP | 123/udp | 4 | 1 | 556.9 |
| SNMPv2 | 161/udp | 2 | 1 | 6.3 |
| Portmap | 111/udp | 1 | 1 | 7 to 28 |
| CLDAP | 389/udp | 1 | 1 | 56 to 70 |
| SSDP | 1900/udp | 1 | 1 | 30.8 |
The factor is how many bytes a reachable server can send back for each byte it receives, as published by CISA in alert TA14-017A.
Destination ports
DNS questions
DNS record types
Networks
- AS23470 ReliableSite.Net LLC from 9 sources1,131
- AS13335 Cloudflare, Inc. from 4 sources86
- AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMIT from 13 sources35
- AS9465 AGOTOZ PTE. LTD. from 2 sources16
- AS45102 Alibaba (US) Technology Co., Ltd. from 2 sources3
- AS4760 HKT Limited from 1 source2
- AS61414 Edgenap Ltd from 1 source1
Countries
- HK Hong Kong1,274
Source addresses (unverified)
| Address | Network | Cc | Sends | Datagrams | Last seen (UTC) |
|---|---|---|---|---|---|
| 172.110.223.179 | AS23470 ReliableSite.Net LLC | HK | SIP | 771 | 2026-10-11 03:21 |
| 172.110.223.200 | AS23470 ReliableSite.Net LLC | HK | SIP | 124 | 2026-10-11 02:45 |
| 172.110.223.188 | AS23470 ReliableSite.Net LLC | HK | SIP | 65 | 2026-10-11 01:32 |
| 172.110.223.159 | AS23470 ReliableSite.Net LLC | HK | SIP | 60 | 2026-10-08 21:49 |
| 185.243.5.243 | AS23470 ReliableSite.Net LLC | HK | SIP | 53 | 2026-10-05 22:22 |
| 172.110.223.192 | AS23470 ReliableSite.Net LLC | HK | SIP | 44 | 2026-10-10 23:43 |
| 104.28.166.52 | AS13335 Cloudflare, Inc. | HK | Unrecognised | 37 | 2026-10-10 01:33 |
| 104.28.163.53 | AS13335 Cloudflare, Inc. | HK | Unrecognised | 28 | 2026-10-11 01:15 |
| 104.28.163.52 | AS13335 Cloudflare, Inc. | HK | Unrecognised | 14 | 2026-10-10 09:27 |
| 150.107.38.251 | AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMIT | HK | Unrecognised | 12 | 2026-10-10 14:37 |
| 156.225.1.10 | AS9465 AGOTOZ PTE. LTD. | HK | NTP | 12 | 2026-10-07 15:45 |
| 150.107.36.236 | AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMIT | HK | Unrecognised | 11 | 2026-10-10 13:29 |
| 172.110.223.207 | AS23470 ReliableSite.Net LLC | HK | SIP | 9 | 2026-10-10 02:22 |
| 104.28.166.47 | AS13335 Cloudflare, Inc. | HK | Unrecognised | 7 | 2026-10-10 03:52 |
| 156.225.1.99 | AS9465 AGOTOZ PTE. LTD. | HK | SNMP | 4 | 2026-10-05 19:01 |
| 185.243.5.10 | AS23470 ReliableSite.Net LLC | HK | SIP | 3 | 2026-10-10 06:57 |
| 165.154.40.205 | AS135377 UCLOUD INFORMATION TECHNOLOGY (HK) LIMIT | HK | MGCP | 2 | 2026-10-09 07:53 |
| 185.243.5.164 | AS23470 ReliableSite.Net LLC | HK | SIP | 2 | 2026-10-08 20:03 |
| 8.210.123.17 | AS45102 Alibaba (US) Technology Co., Ltd. | HK | DNS | 2 | 2026-10-08 08:40 |
| 218.250.115.177 | AS4760 HKT Limited | HK | Unrecognised | 2 | 2026-10-08 14:06 |
Latest datagrams
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
Payload bytes withheld: they contain the sensor's address.
payload bytes
00000000 7f 00 01 2b 99 86 28 01 00 00 06 00 00 00 00 ff |...+..(.........|
payload bytes
00000000 7f 00 01 2b 99 86 28 01 00 00 05 00 00 00 00 ff |...+..(.........|
payload bytes
00000000 7f 00 01 2b 99 86 28 01 00 00 04 00 00 00 00 ff |...+..(.........|